The Winter Vivern Russian hacking group has been exploiting a Roundcube Webmail zero-day since at least October 11 to attack European government entities and think tanks. The Cybersecurity and ...

ESET Research has been closely tracking the cyberespionage operations of Winter Vivern for more than a year and, during our routine monitoring, we found that the group began exploiting a zero-day XSS ...

Low-profile threat group Winter Vivern has been exploiting a zero-day flaw in Roundcube Webmail servers with a malicious email campaign targeting governmental organizations and a think tank in Europe ...

According to ESET Research, Winter Vivern is a Russian hacking group that has been operating since 2020. The notorious cybercriminals reportedly target governments across Central Asia and Europe. The ...

A politically motivated cyber threat that's hardly discussed in the public sphere has made a sort of comeback in recent months, with campaigns against government agencies and individuals in Italy, ...

An advanced hacking group named 'Winter Vivern' targets European government organizations and telecommunication service providers to conduct espionage. The group's activities align with the interests ...

“Winter Vivern is a threat to governments in Europe because of its persistence, its very consistent running of phishing campaigns, and because a significant number of internet-facing applications are ...

The Russia-aligned advanced persistent threat (APT) known as Winter Vivern has been observed conducting espionage campaigns targeting government organizations and a private telecommunication ...

An APT group known in the security industry as Winter Vivern has been exploiting a vulnerability in the Zimbra Collaboration software to gain access to mailboxes from government agencies in several ...

After reading the technical details about this zero-day that targeted governmental entities and a think tank in Europe and learning about the Winter Vivern threat actor, get tips on mitigating this ...